evaluate the following using identity ( part 2 )
4. (0.4a + 1/4 b) (0.4a - 1/4b)
5. (x + 1/y) ( x-1/y)
6. (2/3x + 3/11y) (2/3x - 3/11y)
Answer:
refer the attachment pls
Please help 20 points
Answer: y = 42°
Step-by-step explanation: You can find the second angle in that triangle because it is next to another 90° angle. Then you add 90 and 48 and subtract that number from 180 and you get 42. Hope this helps!
Answer:
42
pls mark brainliest if correct
What is the length of each side of this equilateral triangle?
A) 42
B) 30
C) 15
D) 12
Answer:
C I think hope you help this my answer
Answer:
15
Step-by-step explanation:
no explanation
Given f(x)=2x+1 and g(x)=7-x. Find g(f(x)).
Answer:
f(g(x)) = 2(7 - x) + 1
Step-by-step explanation:
f(x) = 2x + 1
g(x) = 7 - x
The question in the picture itself says to find f(g(x)) so i'll find that instead
f(g(x)) = 2(7 - x) + 1
f(g(x)) = 14 - 2x + 1
f(g(x)) = -2x + 15
Can anyone help me with this please I really need help with this rq .
Answer:
Step-by-step explanation:
g(x) = ax - b
-76 = 27a - b
-79 = 28a - b Subtract
3 = -a Multiply both sides by -1
a = -3
g(x) = -3x - b
-85 = -3*30 - b
-85 = - 90 - b Add 90 to both sides
90-85 = - b Combine
5 = - b Multiply both sides by - 1
-5 = b
g(x) = -3x - b
g(x) = -3x - (-5)
g(x) = - 3x + 5
NEED ASAP
What are the coordinates of the midpoint of AB if A (4, 6) and B(-8, 2)?
o (6, 4)
O (-6, 4)
O (-2, 4)
o (2, 4)
Answer:
(- 2, 4 )
Step-by-step explanation:
Given endpoints (x₁, y₁ ) and (x₂, y₂ ) , then the midpoint is
( [tex]\frac{x_{1}+x_{2} }{2}[/tex] , [tex]\frac{y_{1}+y_{2} }{2}[/tex] )
Here (x₁, y₁ ) = A (4, 6 ) and (x₂, y₂ ) = B (- 8, 2 )
midpoint = ( [tex]\frac{4-8}{2}[/tex] , [tex]\frac{6+2}{2}[/tex] ) = ( [tex]\frac{-4}{2}[/tex] , [tex]\frac{8}{2}[/tex] ) = (- 2, 4 )
Midpoint be p(x,y)
P(x,y)=
[tex]\\ \sf\longmapsto \left(\dfrac{4-8}{2},\dfrac{6+2}{2}\right)[/tex]
[tex]\\ \sf\longmapsto \left(\dfrac{-4}{2},\dfrac{8}{2}\right)[/tex]
[tex]\\ \sf\longmapsto (-2,4)[/tex]
Convert the following measurements into the indicated units:
Step-by-step explanation:
1) 2.057 kg
2)1.25× 10^-1 um
3)65.8km
4)2.78 × 10^2 mg
5)9.44 yards
6) 5.91ft
7)200000cm^3
8)1287.48km
7.0g divided by 5.6g/cm cubed
Answer:
Should be 1.25cm
Step-by-step explanation:
Sketch the graph a x=2 and y= -1 then find the point a which the two graphs intersect
Answer: They intersect at (2,-1)
Step-by-step explanation:
Step-by-step explanation:
I hope my answer help you. Please, rate it as brainlest answer if it is right.
The hypotenuse of a certain number is 5 units and one leg is 3 units long. Find the area of the triangle
Answer:
Area: 6
Step-by-step explanation:
It's a five, four, three triangle. Multiply 3 by 4, then divide the answer by 2 to find the area.
Solve for x.
2x-30/X+60
90
50
Ο
70
20
Answer:
It's 50
Step-by-step explanation:
Hope it helped youuh
Answer:
x = 50
Step-by-step explanation:
2x-30+x+60 = 180
3x+30 = 180
3x = 150
x = 50
13 cm
5 cm
7 cm
12 cm
Find the surface area.
Answer: 37cm
Step-by-step explanation: 5cm + 13cm + 7cm + 12cm = 37cm
Answer:
270 cm^2
Step-by-step explanation:
(13x7)+(12x7)+(5x7)+2(12x5/2)
= 91 + 84 + 35 + 60 =270 cm^2
Write a question that has the quotient of -3/8
Find the slope of a line parallel to each given line.
a
-7x = 3y + 12
Answer:
[tex] - \frac{7}{3} [/tex]
Step-by-step explanation:
Y = mX + c
, since ( -7X = 3y + 12)
, then -3y = 7x + 12
, then y=
[tex] - \frac{7}{3} x - 4[/tex]
Answer:
-7/3
Step-by-step explanation:-7x divided by 12 plus -3y would give you -7/3
can someone help me please, this is so stressful:/
Answer:
x=2
Step-by-step explanation:
To solve for x, you want to isolate it. To do this, move terms that are NOT x and use the opposite operation to get it to the other side.
10x - 3 = 17
(Add 3 to both sides)
10x = 20
Now isolate x (since 10x is really 10 * x, you divide)
10x=20
x=2
This is how you would solve to get the solution.
Hope this helps :D
Factor. Check by multiplying.
x²- 6x
- BRAINLIEST answerer
Is 666 = 37 positive or negative?
Answer: Positive (but not sure)
Step-by-step explanation: Are there answers to the questions is so i could help more but if correct hope i helped :)
What is the equation of the line in slope-intercept form?
Write your answer using integers, proper fractions, and improper fractions in simplest form.
Answer:
[tex]y=-\frac{1}{4}x\\[/tex]
Step-by-step explanation:
The slope is calculated by "up ÷ across".
= -1 ÷ 4
= [tex]-\frac{1}{4}[/tex]
The y-intercept is just 0 (because the line meets at the y axis at 0).
So, using [tex]y=mx+b[/tex] (where m = slope and b = y-intercept),
[tex]y=-\frac{1}{4}x+0[/tex]
but the '+0' is unnecessary so we just say [tex]y=-\frac{1}{4}x[/tex]
vanillaor chocolate?? xD lol >:>
Answer:
Chocolate for sure XD
Step-by-step explanation:
Hope this helps!! lol
If 4 gallons of milk cost $16.24, how much would 7 gallon of milk cost
Answer:
$28.42
Step-by-step explanation:
First let's calculate the cost per gallon.
We can do this by simply dividing the cost of 4 gallons by 4
1 gallon of milk cost 16.24/4 = 4.06
We want to find the cost of 7 gallons.
We can easily do this by multiplying the cost of one gallon by 7
7 gallons of milk cost 7 * 4.06 = $28.42
at noon a contained 20 in of water after several hours it contained 16 in of water what is the percent decrease of water the tank
Answer:
20%
Step-by-step explanation:
20 x .2 =4
0.2 because its 20%
20-4=16
find the measure of KH
Answer:
i dont know
Step-by-step explanation:
is 10/110 an irrational or rational number
Hello there!
10/110 is a rational number because it can be expressed in the form p/q (where p is the numerator and q is the denominator)
Therefore, 10/110 is a rational number.Hope this helps you!
~Just a felicitous girlie
#HaveAGreatDay
[tex]SilentNature :)[/tex]
PLS HELP, WILL GIVE BRAINLIEST!
Answer: The answer to this math question about translating this given expression to an English phrase is C). 3 more than the product of 7 and 4.
Step-by-step explanation: The keywords are times and the sum, which tells us that the 2 operations are multiplication and addition, let's translate this math expression into an English phrase by looking at the 2 operation signs "×" and "+" in order to find the words to translate the given math expression into an English phrase that looks in the equation form and an English phrase like this:
7×4+3 = 3 more than the product of 7 and 4.I hope that my full given answer with my full given step-by-step explanation is very helpful to your own math question about translating this given expression to an English phrase, please mark me as Brainliest after her answer was been reported by someone and got deleted by The Brainly Moderator, take care, always be safe, and have a great rest of the day! :D
Sincerely,
Jason Ta,
The Ambitious of The Brainly And The Role of The TDSB And WHCI Student of The High School.
25% of 80
Question: find the percent of the number
Other if you could also do: 30% of 70, 91% of 60, 40% of 85, 250% of 18
Answer:
20%
Step-by-step explanation:
1. 20%
2. 21%
3. 54.6%
4. 34%
5. 45%
Help me! Quick! Please. 25 points
Answer:
A. would be correct
Step-by-step explanation:
if 1 package is $8 and 2 packages cost $16
the ratio would be $8:1 so the unit rate would be $8 per package
Diedre’s sister works as a lifeguard. Last summer she earned $14 per hour. She earned a total of $5,180 working
as a lifeguard last summer. How many hours did Diedre’s sister work as a lifeguard last summer?
Answer:
370 hours.
Step-by-step explanation:
Divide $5,180/14 to get your answer of the hours she worked.
Answer:
370 hours is how many she worked
14×370= 5,180
hope this helps
Percent of 51,300-45,800
Answer: the percent is 112.01. please mark brainliest
Step-by-step explanation:
Triangle Slmliarity Assignment 2
1 of 15
12:28/01:00:00
POSSIBLE POINTS: 5
Determine whether the triangles are similar by AA-, SSS-, SAS-, or not similar
3.
B
MN
26
С
16
D
A
21
E
32
Ο ΑΑ
O SSS
OSAS
O Not Similar
HE
Type here to search
O
3
87%
77'
O A )
11
Answer: SAS
Step-by-step explanation:
There is an angle B or D and the sides being the 26, 21, and 32! (Sorry if I get it wrong)
Using the discriminate. Find the number of real solutions. 2^2+7x-15=0
Answer:
= 11/7
Step-by-step explanation:
